Evidence map›Paper›PMID 24434538›Full record

ReviewFEBS letters2014

Connexin hemichannel and pannexin channel electrophysiology: how do they differ?

Dakshesh Patel, Xian Zhang, Richard D Veenstra

Abstract readReview
In one paragraph

Review in FEBS letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Hemichannels contribute to mitochondrial CaFrontiers in cell and developmental biology · 2024
    Article
  7. Acute activation of hemichannels by ethanol leads to CaFrontiers in cell and developmental biology · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Connexins and Pannexins in Vascular Function and Disease.International journal of molecular sciences · 2018
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Dakshesh PatelDepartment of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, United States.
Xian ZhangDepartment of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, United States.
Richard D VeenstraDepartment of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, United States. Electronic address: veenstrr@upstate.edu.

Funding

GAP JUNCTIONS AND IONIC CURRENTS IN DEVELOPING HEARTR01HL042220 · NHLBI · UPSTATE MEDICAL UNIVERSITY · PI VEENSTRA, RICHARD DAVID, YANG, JENNY J. · 1988 to 2013
$3.1M
NHLBI NIH HHS HL-042220NHLBI NIH HHS R01 HL042220
6 · The paper itself

Abstract

Connexin hemichannels are postulated to form a cell permeabilization pore for the uptake of fluorescent dyes and release of cellular ATP. Connexin hemichannel activity is enhanced by low external [Ca(2+)]o, membrane depolarization, metabolic inhibition, and some disease-causing gain-of-function connexin mutations. This paper briefly reviews the electrophysiological channel conductance, permeability, and pharmacology properties of connexin hemichannels, pannexin 1 channels, and purinergic P2X7 receptor channels as studied in exogenous expression systems including Xenopus oocytes and mammalian cell lines such as HEK293 cells. Overlapping pharmacological inhibitory and channel conductance and permeability profiles makes distinguishing between these channel types sometimes difficult. Selective pharmacology for Cx43 hemichannels (Gap19 peptide), probenecid or FD&C Blue #1 (Brilliant Blue FCF, BB FCF) for Panx1, and A740003, A438079, or oxidized ATP (oATP) for P2X7 channels may be the best way to distinguish between these three cell permeabilizing channel types. Endogenous connexin, pannexin, and P2X7 expression should be considered when performing exogenous cellular expression channel studies. Cell pair electrophysiological assays permit the relative assessment of the connexin hemichannel/gap junction channel ratio not often considered when performing isolated cell hemichannel studies.

Indexed as

Membrane PotentialsAnimalsCell Membrane PermeabilityConnexinsGap JunctionsHumansPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2XConnexinsPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2XChannelsConnexinGap junctionHemichannelP2X(7) receptorPannexin

Identifiers

PMID24434538
PMCPMC3989408

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.